WILTON — A Wilton-based company was cited for two “serious” violations of safety and health regulations in an incident that left an employee dead last June, according to a report by the U.S. Department of Labor.

KTI Utility Construction is facing penalties for a workplace accident on June 9, 2016, that led to the electrocution of 44-year-old Marco Silva of Danbury, also known as Marcos DaSilva.

The drilling contracting company was cited for failing to operate mechanical equipment at a safe distance from an exposed power line and doing so without tasking an employee with ensuring that the safe distance is observed and promptly warning anyone operating too close to an exposed power line.

According to an investigation conducted by the Occupational Safety and Health Administration, Silva was preparing a worksite on Rivergate Drive for the installation of a new utility pole when the equipment he was operating came into contact with a high-voltage transmission line.

The resulting electrical shock flowed through Silva’s right arm and into his chest. Silva was rushed by Wilton Volunteer Ambulance Corps from the scene of the accident to Norwalk Hospital, where he later died.

The ensuing investigation concluded that Utility Construction “did not ensure that the derrick boom truck…was operated safely so that the minimum approach distance between the boom and the exposed energized overhead power transmission was maintained at all times.”

Furthermore, OSHA found that the company failed to ensure that a “designated employee” maintained a safe distance between the boom and the exposed power line at all times.

As a direct result of these transgressions, OSHA determined that Silva sustained “fatal injuries from electric shocks.”

For their violations, KTI Utility Construction was originally issued a $2,800 fine. In August 2016, the company met with OSHA and reached a settlement in which they agreed to pay a fine of $2,000, said Ted Fitzgerald, the regional director for Public Affairs at the U.S. Department of Labor.

KTI Utility Construction could not be reached for comment.

Electrocution is the second-most common cause of workplace deaths in the U.S. after falls, according to OSHA.

In 2014, 74 workers were electrocuted in the U.S., accounting for 8.5 percent of workplace deaths. Falls were blamed for 349 deaths, or 39.9 percent of workplace deaths.